• Yong-Hua Li, Yong-Qiang Wang, Lin Zeng, Wei Chen, Li-Ye Yang, Qiu-Feng Zhu, and Hai-Long Fu.
• Department of Anesthesiology, Changzheng Hospital, Second Military Medical University Shanghai 200003, China.
• Int J Clin Exp Med. 2014 Jan 1; 7 (9): 2740-3.

ObjectiveTo introduce a new modified technique for radial artery catheterization.Materials And MethodsA prolongated needle was made by using routine Vasocan Braunule needle and 1 ml syringe. A table of random digits was used for randomization of 32 interns. 14 interns were involved in group T and 18 interns were in group M. Each intern accomplished 20 cases. Then 640 patients were divided into 2 groups: group T included 280 patients with traditional direct technique, group M included 360 patients with 1 ml hollow tube-assisted technique.ResultsSatisfactory results were obtained for 107 patients in group T and 292 patients in group M (P < 0.05). The success rates for catheter insertion after one attempt were 38.2% in group T and 81.1% in group M (P < 0.001). The blood flow times for observation were 1.7 ± 0.2 s in group T and 19.6 ± 1.8 s in group M (P < 0.001).ConclusionThe authors suggested the use of 1 ml hollow tube-assisted radial artery cannulation technique rather than a direct technique. This modified technique provided easy, safe, quick and less cost cannulation.

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